.music-container{
    width: 1000px;
    margin: 0 auto;
}

.music-container header{
    display:flex;
}

.music-container .top-nav{
    padding: 30px 15px;
    font-size: 16px;
}

.music-container .active{
    background: rgb(61, 136, 61);
    color: white;
}

.music-container li{
    padding: 10px 20px;
}

.music-container li a{
    display:block;
    height: 100%;
    padding:  10px 20px;
}